Lubricating means for internal-combustion engines



1,628,755 P. A. TANNER ET AL LUBRICATING MEANS FOR INTERNAL COMBUSTION ENGINES Q INVENroR. b /Z/z' /Z 7nner.

e703 TJJyeno.

ATTORNEY.

May 17 1927.v

P. A. TANNER ET AL LunzcATxNe. NEANs Non INTENNAL coMusffIoN ENGINES Filed Feb, 12, 1925 2 sheets-sheet. 2

INVENTOR F'zlz/'v /7 Tanner: B 7.' Jfyezzs- ATTORNEY.

Patented May 17, 1927.

UNITED STATES PATENT OFFICE.

Parmi a. MANNEN `man FINN lr. monats, or so'u'rrr anni), INDIANA, AssrGNoas rro eusxmAN Moron wenns, or LrNcoLN, NEnaAsxA, A CORPORATION.

LUBMGATING MEANS Non INTEBNAL-coMBUsTIoN ENGINEsr application ned rebruary 1i, niet. serial No. 8,845.

` The invention relates to lubricating means for internal combustion engines, and has for its object to provide means whereby lubricnt which c lle'cts in the crank of t e engine Wi be taken up by ineanspof a rotatable gear having rneshinffr engage ment with teeth on a crank shia t, and the lubricant taken by the gear, distributed on the` crank shafpt incident to the centrifugalaetion during the rotation oi the gear, thereby lubricating the bearings of the crank shaft. 1

A further object is to dispose the crank shaft Ateeth between s aced bearings `vvhereby both of said bearings will be lubricated during the rotation of Jthe gear and crank shaft. Also to extend the recesses bettveen the teeth of the crank shaft into the ends of bearing sleeves whereby lubricant `collectinr pockets are formed in which `pockets lubricant is collected and distributed in the bearing sleeves. f p p A further object is to provide in the bottoin of the cran easing an oil conductor channe which ter inates adjacent `the unt er si `e df the "oi distribnting Wear for conducting oil Iwvhich collects te crank casing to a position` here aj win be taken up by the gear during its rotation.

`A further object is to provide a rotatable shaft referti. ly parallel with the crank shaft an on `W ich the oil distribtin gear is lnounted, said shaft bengrotatably mounted in a seeve having spaced sleeves therein, thereby .forming an oil chaniber `around' the shaft and aperture in the iirst nlentioned sleeve adjacent the crankof the crank shaft and through which aperture oil is splas "ed an rotation of the crank, t aereloy niaintaining `the annular oicollectin `chamber supplied with oil for 1a ricating the spaced bearings of the shaft. p

With the above and other objects in view the invention resides in the combination and arrangement o parts as hereinafter set torni, shown die drawings, described and claimed, it b'eingunderstood that `changes in the precis-e embodiment of` the avenforced during the `tion inay beinade Within the scope of what is clainied 'vithout departing from the spirit of Lthe invention.

In the drawing Figure l. is a horizontal sectional. View through a horizontal type of engine showing, the lubricating device applied thereto. Fignre 2 is a longitudinal `sectional view taken on line 2-2 of Figure l.

is connected to the crank 5 of the crank shaft 6. In this type of engine fuel consisting 'of inixed gasoline, air and lubricating oil coming from the carbuieter V(not shown) enters the crank case through the pipe 7,l as is common :in this type or ennrine. The fuel and lubricating oil niixed therewith enters the crank casing `9` Where it is compressed 4and transferred to the cylinder in the usual manner. The oil being heavier than the vapor, a cert-ain percentage thereof precipitates to the bottom of the crank case 9, and this facilitated b v the rapid rotation ot the crank arm 5, and connecting rod lnorenient having the effect of a separator" by centrifugal pressure on 'the charge, causing the heavier oil to in1- ljiinge and accinnulate on the walls ol the crank ease, and ginvitate to the bottoni thereof. However it has been found that this alone, the bearings of Vthe bea-ring sleeves l() of the crank shaft 6 are not thoroughly lubricated, and to overconie this diiliculty the present device is primarily designed. Disposed to one sideof the crank casing 9 is a gear casing 1l, and in `which gear casing is rotatably `mount-ed an oil distributing gear 12, which is carried `by the rotatable shaft 13, disposed in parallel re- Vfor thoroughly lubricating the same.

lation to the crank shaft G. The bottom of the crank casing 9 is provided with an oil collecting trough 14, which trough collects the oil which gravitates to the bottom of the casing 9, and conducts said oil transversely into the vangularly disposed portion 15 of the` trough, which angularly disposed portion 15 terminates at 16 in the bottom of the gear casing 11 adjacent the bottom of the gear 12, therefore it will be seen that the oilV which collects in the crank casing will be discharged in the gear casing where it will be picked up by the lubricant distributing` gear 12 during its rapid rotation.

Lubricant distributing gear 12 meshes with the teeth 17 formed integral with the crank shaft 6 and milled thereon, therefore it will beV seen that when the crank shaft G is rotated at a high rate of speed, the lubricant distributing gear 12 will pick up the lubricant from ythe gear casing 11 and through its centrifugal action will distribute the lubricant onto the crank shaft (i between the bearing sleeves 10, and said lubricant willthoroughly lubricate the bearings ofthe bearing sleeves 10. Sleeves 10 extend over the ends of the teeth 17 carried by the crank shaft, thereby forming pockets 18between the ends of the teeth and in which pockets lubricant will gather and be held during the rotation of the crank shaft 6, and Will slowly seep through the bearings t will be noted that the bearing sleeves 10 are disposed in a sleeve 19 of the casing 11, and the gear 12 extends through one side of said sleeve, therefore an annular lubricant chamber 20 is formed around the Vtoothed portion of the crank shaft 6, therefore the collection of the lubricant between the bearing sleeves 10 is insured at all times during the rotation of the gear 12.

Shaft 13, on which the gear 12 is mounted, is rotatably mounted in spaced bearing sleeves 21 disposed within the sleeve 22 of the crankshaft casing 9, consequently by having the sleeves 21 spaced an annular lubricant chamber 23 is provided around the shaft 13, and into which chamber lubricant is splashed and forced by the high speed of movement of the crank 5 through the aperture 24; in the sleevei22, therefore it will be seen that the shaft 13 is thoroughly lubricated at all times. Shaft 13 is provided with a pulley 25, which may be utilized for driving machinery or any other purpose.

From the above it will be seen that means isiprovided in` connection with an internal 'combustion engine of the high speed type, whereby lubricant which collects in the crank casing will be conveyed through a trough to adistributing gear, which distributing gear takes up the lubricant and distributes the same on the crank shaft adjacent the bearing thereof, thereby thoroughly lubricating the crank shaft at all times. The system is particularly adapted for use in connection with liigh-speed-twocycle engines of the horizontal type, however Ait is to be understood it may be applied to various types of engines.

The invention having been set forth what is claimed as new and useful is:-

1. The combination with an engine crank shaft rotatably mounted in spaced bearing sleeves, a casing having a lubricant collecting chamber therein, a gear rotatably mounted in said casing, a gear carried by .said crank shaft and formed by elongated teeth extending into the adjacent ends of the bearing sleeves thereby .forming lubricant collecting chambers, said first mentioned gear meshing with the crank shaft gear and forming means whereby lubricant will be conveyed from the lubricant chamber to the crank shaft bearings.

2. The combination with an internal combustion engine having a crank shaft casing, a crank shaft rotatably mounted in said casing in spaced bearings, a gear casing carried by one side of the crank shaft casing, means whereby lubricant from the crank shaft casing will be discharged into the gear casing, a shaft rotatably mounted in the gear casing, posed within thev gear casing, a gear carried by the crank shaft between the spaced bearings and meshing with the first mentioned gear, said rotatable shaft being rotatably mounted in spaced bearing sleeves, a sleeve carried by the crank shaft casing and surrounding the spaced bearing sleeve and provided with an aperture in comn'iunication with an annular chamber formed by said sleeve, said aperture forming means whereby lubricant will be forced from the crank shaft casing into the annular chamber.

3. The combination with an engine crank shaft casing, a crank shaft rotatably mounted in spaced bearing sleeves, said sleeves being disposed within a cylindrical crank shaft casing thereby forming an annular chamber, a crank disposed in said chamber, of means cooperating with the crank shaf t whereby during the rotation of the crank lubricant will be forced through an aperture in the sleeve of the casing into the annular chamber.

4. The combination with an engine having a crank casing, a crank shaft rotatably mounted in said casing, a bearing for said crank shaft, a gear casing, means for draining lubricant collecting in the crank casing to the gear casing, a gear disposed in the gear casing, said gear meshing with a gear carried by the crank shaft through an opening in said bearing, said crank shaft gear overlapping the inner periphery of said bearing adjacent said opening therein.

5. The combination with an engine hava gear carried by said shaft and dising a crank casing, a crank shaft rotatably mounted in said casing, a bearing for said crank shaft, a gear carried by said crank shaft spaced from the ends thereof, and adriven gear meshing with the crank shaft gear through an openin in said bearing,

l whereby lubricant applie to the driven gear shaft bearing.

In testimony whereof we aix our signatures.

PHILIP A. TANNER. FINN T. IRGENS. 

